:root {
            --lab-primary: #0984e3;
            --lab-primary-dark: #076fc0;
            --lab-accent: #00b894;
            --lab-teal: #0a899a;
            --bg-light: #f8fafc;
            --card-light: #ffffff;
            --border-light: #e2e8f0;
            --text-dark: #0f172a;
            --text-muted: #64748b;
        }
        body {
            font-family: 'Hind Siliguri', 'Inter', -apple-system, sans-serif;
            background: radial-gradient(circle at top, #eefbfd 0%, #f4fcff 35%, #f8fcff 100%);
            color: var(--text-dark);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        body.dark {
            background: #0f0f1a;
            color: #f1f5f9;
        }
        .hero-banner {
            background: linear-gradient(135deg, #0984e3 0%, #0a899a 50%, #00b894 100%);
            color: #ffffff;
            padding: 38px 0 30px;
            border-bottom-left-radius: 28px;
            border-bottom-right-radius: 28px;
            box-shadow: 0 10px 30px rgba(9,132,227,0.2);
            text-align: center;
        }
        .hero-title {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 8px;
        }
        .hero-subtitle {
            font-size: 1rem;
            opacity: 0.95;
            max-width: 650px;
            margin: 0 auto;
        }
        .search-box-card {
            background: #ffffff;
            border-radius: 20px;
            padding: 20px;
            box-shadow: 0 8px 30px rgba(0,0,0,0.07);
            border: 1px solid var(--border-light);
            margin-top: -24px;
            position: relative;
            z-index: 10;
        }
        body.dark .search-box-card {
            background: #181932;
            border-color: #2e3056;
            box-shadow: 0 8px 30px rgba(0,0,0,0.4);
        }
        .tab-pill-group {
            display: flex;
            background: #e2e8f0;
            border-radius: 14px;
            padding: 4px;
            margin-bottom: 16px;
        }
        body.dark .tab-pill-group {
            background: #252648;
        }
        .tab-pill-btn {
            flex: 1;
            border: none;
            background: transparent;
            padding: 10px 14px;
            font-size: 14px;
            font-weight: 700;
            border-radius: 11px;
            color: var(--text-muted);
            transition: all 0.2s ease;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }
        .tab-pill-btn.active {
            background: #ffffff;
            color: var(--lab-primary);
            box-shadow: 0 3px 10px rgba(0,0,0,0.08);
        }
        body.dark .tab-pill-btn.active {
            background: #181932;
            color: #38bdf8;
        }
        .form-select, .form-control {
            border-radius: 12px;
            padding: 10px 14px;
            border: 1.5px solid var(--border-light);
            font-size: 14px;
            font-weight: 500;
        }
        body.dark .form-select, body.dark .form-control {
            background-color: #121324;
            border-color: #2e3056;
            color: #f1f5f9;
        }
        .chamber-card {
            background: #ffffff;
            border-radius: 18px;
            border: 1.5px solid var(--border-light);
            padding: 18px;
            transition: all 0.25s ease;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            height: 100%;
            box-shadow: 0 4px 15px rgba(0,0,0,0.03);
            position: relative;
        }
        .chamber-card:hover {
            transform: translateY(-4px);
            border-color: var(--lab-primary);
            box-shadow: 0 12px 25px rgba(9,132,227,0.12);
        }
        body.dark .chamber-card {
            background: #181932;
            border-color: #2e3056;
        }
        .chamber-logo-box {
            width: 65px;
            height: 65px;
            border-radius: 16px;
            object-fit: cover;
            border: 2px solid #e0f2fe;
            box-shadow: 0 2px 8px rgba(0,0,0,0.06);
            flex-shrink: 0;
        }
        .badge-lab-verified {
            background: rgba(0, 184, 148, 0.12);
            color: #00b894;
            border: 1px solid rgba(0, 184, 148, 0.3);
            border-radius: 20px;
            font-size: 11px;
            font-weight: 700;
            padding: 3px 9px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .badge-home-col {
            background: rgba(9, 132, 227, 0.1);
            color: #0984e3;
            border: 1px solid rgba(9, 132, 227, 0.25);
            border-radius: 20px;
            font-size: 11px;
            font-weight: 700;
            padding: 3px 9px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .btn-view-tests {
            background: linear-gradient(135deg, #0984e3, #0a899a);
            color: #ffffff;
            border: none;
            border-radius: 12px;
            padding: 9px 16px;
            font-size: 13px;
            font-weight: 700;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            transition: opacity 0.2s;
            width: 100%;
        }
        .btn-view-tests:hover {
            color: #ffffff;
            opacity: 0.92;
        }
        .btn-call-chamber {
            border: 1.5px solid var(--border-light);
            background: transparent;
            color: var(--text-dark);
            border-radius: 12px;
            padding: 9px 12px;
            font-size: 13px;
            font-weight: 600;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
        }
        body.dark .btn-call-chamber {
            color: #e2e8f0;
            border-color: #2e3056;
        .test-card {
            background: #ffffff;
            border-radius: 18px;
            border: 1.5px solid var(--border-light);
            padding: 18px;
            transition: all 0.25s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            box-shadow: 0 4px 15px rgba(0,0,0,0.03);
            position: relative;
        }
        .test-card:hover {
            transform: translateY(-3px);
            border-color: var(--lab-primary);
            box-shadow: 0 10px 24px rgba(9, 132, 227, 0.12);
        }
        body.dark .test-card {
            background: #181932;
            border-color: #2e3056;
        }
        .test-price-tag {
            font-size: 20px;
            font-weight: 800;
            color: #00b894;
        }
        .test-mrp-tag {
            font-size: 13px;
            color: #94a3b8;
            text-decoration: line-through;
            margin-left: 6px;
        }
        .badge-discount {
            background: rgba(239, 68, 68, 0.1);
            color: #ef4444;
            font-size: 11px;
            font-weight: 800;
            padding: 2px 8px;
            border-radius: 6px;
            border: 1px solid rgba(239, 68, 68, 0.2);
            margin-left: 6px;
        }
        .cat-chip-btn {
            white-space: nowrap;
            transition: all 0.2s ease;
            font-size: 13px;
        }
        .cat-chip-btn.active {
            background: var(--lab-primary) !important;
            border-color: var(--lab-primary) !important;
            color: #fff !important;
            box-shadow: 0 4px 12px rgba(9, 132, 227, 0.25);
        }

        /* ===== STRICT DRAWER ISOLATION ===== */
        /* Guarantees that the app drawer sidebar stays fixed off-canvas on page load */
        .app-drawer,
        #appDrawer {
            position: fixed !important;
            top: 0 !important;
            left: -340px !important;
            width: 310px !important;
            max-width: 85vw !important;
            height: 100vh !important;
            height: 100dvh !important;
            display: flex !important;
            flex-direction: column !important;
            padding: 0 !important;
            overflow-y: auto !important;
            overflow-x: hidden !important;
            background: #ffffff !important;
            transition: left 0.32s cubic-bezier(0.16, 1, 0.3, 1) !important;
            -ms-overflow-style: none !important;
            scrollbar-width: none !important;
            z-index: 2050 !important;
            box-shadow: 4px 0 25px rgba(0,0,0,0.18) !important;
        }
        .app-drawer::-webkit-scrollbar,
        #appDrawer::-webkit-scrollbar {
            display: none !important;
        }
        .app-drawer.open,
        #appDrawer.open {
            left: 0 !important;
        }
        .dark .app-drawer,
        .dark #appDrawer,
        body.dark .app-drawer,
        body.dark #appDrawer {
            background: #181932 !important;
        }
        .drawer-backdrop {
            position: fixed !important;
            inset: 0 !important;
            top: 0 !important;
            left: 0 !important;
            width: 100vw !important;
            height: 100vh !important;
            background: rgba(0, 0, 0, 0.5) !important;
            backdrop-filter: blur(2px) !important;
            -webkit-backdrop-filter: blur(2px) !important;
            z-index: 2040 !important;
            display: none;
            opacity: 0;
            transition: opacity 0.25s ease !important;
        }
        .drawer-backdrop.show {
            display: block !important;
            opacity: 1 !important;
        }